d4v0's recommendations are all good. You dont really need 1000+ w though, unless you are looking at tons of HDDs or adding a third gpu or something in the future. I am running a 4670K OC'd with 2x680's using this: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011
EDIT: But if you are set on 1000watts, d4v0's recommendations, as stated, are all good. Personally I would be partial to the Seasonic...
But XFX is great too (they use the same units as seasonic i believe, have been running an old xfx for almost 4 straight years now...)